Drying apparatus.



' No. 644,189. Patented Feb. 27, |900.

P. SIEFELDT.

DRYING APPARATUS.

(Application led Feb. 27, 1899.)

(No Model.) 5 Sheets-Sheet I.

THE Nonms PErzHs co.. Pham-mwa wAsmNnfoN. u. c.

No. 6415189. Patented Feb. 27, |900. P. slEFELnT.

DRYING APPARATUS.

(Application filed Feb. 2-7, 1899.) ("0 MOdl') y 5 sheets-sheet 2.

No. 644,189. Patented Feb. 27, |900.

P. slEFELnT.

DRYING APPARATUS.

(Application med Feb. 27, 1899.)

4 (No Modei.) 5 Sheets-Sheet 3.

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Y flfamqy No. 644,I89. Patented Feb 2-7,V |900. P. SIEFELDT.

DRYING APPARATUS.

(Application flied Feb. 2f?, 1899.) v (No Modem l5 Sheets-Sheet 4.

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No. 644,!89. Patented Feb. 27, |900.l

P. SIEFELDT.

nnvm APPARATUS.

(Application led Feb. 27, 1899.)

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UNITED Sfrnfins` PATENT mee,

PAUL smrnLDn-or oDEssA, Russin.

VDurme APPARATUs;

'SPECIFICATION forming pai-'t of Letters Patent No. 644,189, dated February 2v, 1900i Application filed February 27, 1899. Serial No. 707,075. (No model.)

To 'all wtofiit it may concern/ Be it known that I, PAUL SIEFELDT, a subject of the Emperor of Russia, residing at Odessa, in the Empire of Russia, have invented a new and useful Apparatus for Drying Linen and the Like, of which the following is a specification.

The present application for United States Letters Patent relates to an improved transportable apparatus capable of being operated by hand for the quick drying of linen and the like.

This apparatus possesses important advantages in that it enables linen and the like to be very quickly dried without damaging it in the slightest degree, that it disinfects the linen by means of the great heat which can be employed, and that it is of very great power of production and fully replaces extensive drying spaces or rooms for the purpose of drying linen or the drying of the same in the open air, which latter is difficult in many places, and especially in large cities.

Referring to the accompanying drawings, Figure l shows a generalview of the apparatus. Fig. l shows a detail of the apparatus. Fig. 2 shows the inner framesupported on a stand outside the apparatus. Fig. 3 shows a View from above of the apparatus, the cover thereof being supposed to be removed especially for the purpose of showing the arrangement of the smoke-pipes. Fig. 4 shows a cross-section of the apparatus. Fig. 5 shows a longitudinal section of the apparatus.

The improved machine consists,essentially, of an inclosed chamber, the' interior whereof is arranged to be heated by hot air and provided with a revolvingdrum. The inclosed chamber comprises the lower rectangular portion A, supported on feet a, above which is placed an upper semicylindrical part B, in which is arranged the door C and Ventilatingpipes b, through which escapes the air mixed with steam, and within each pipe is fixed the valve or damper c for regulating the escape of air. Below the lower part of A is arranged an opening normally closed by the door d, through which the furnace is fed. The thermometer e is attached at any suitable place to give an indication of the internal temperature. This thermometer is bent at a right angle,z so that its bulb projects into the interior of the apparatus, but not so as to come in contact with the revolving'drum. The furnace of the apparatus is placed beneath the chamber A and consists of the fireplace D and tubes E E. lThe fireplace D is placed beneaththe machine along theaxial line and is about one-'third of the width of the chamber and ex'- tends longitudinally along the whole bottom of the apparatus. It is constructed of a grat-- ing f, placed over the ash-pit g, and the remaining part of the fireplace is lined below and at the sides with iire-brick. At the top this fireplace is covered with a cast-iron covering-plate F, above which is placed a suficiently-thick layer of coarse sand, over which is laid an iron plate Gr, which also covers the first turn'of the stovepipe E E. The iiame from the furnace D passes at the back thereof into two tubes placed at' the opposite sides of tubes E E. These tubes lie one on each side of the stove, and each of them makes two or three turns in the distance between the stove and-the exit-wall of the chamber. These tubes E E then pass outside and unite into one chimney E', which leads to the smoke-stack. The revolving drum H of the apparatus consists of an iron frame built up of bars h and covered by a netting of cords or a textile fabric.

At one of the two opposite sides of the drum there is fixed a frame I, upon which are fastened, by means of the clips it', and hanging from the cords or rods thereof the linen or clothes to be dried, Fig. 2, during which operation the opposite frame I is without any linen. The frame-shaft o projects from ythe apparatus at each end and revolves in suitable bearings, having the handle K attached to one end thereof for the purpose of revolving it. In order to stop the frame in any desired position, a suitable stop-catch Z, Figs. l and 3, is provided.

The method of operating the above-described apparatus is as follows: A sufficient fire is kindled in the furnace D,'the door of the chamber C is provisionally closed, and the dampers c c are regulated. When the thermometer e indicates 100o Raumur, the door Eis opened, the drum H is revolved until one of the frames I is opposite the said door, and the same iss-withdrawn, It is then IOO placed upon the supports M M, Fig. 2, and another frame I, which has been previously loaded with the linen, having been taken from the said supports, is put into the drum in place of the empty frame, the door C is closed, the check-bolt is Withdrawn, and the dampers c c are Opened. The drum, with the linen, is then caused to revolve more or less quickly first one Way and then the other. Within about ten minutes the linen, which was previously well Wrung out by means of a wringing-machine or the like, will be perfectly dry and retain its full whiteness in contradistinction to linen which has been dried in a dusty garret or even in the open air and in such like premises, and also the linen has a special flexibility. The drum is then slowly revolved and held in position by the catch, the door C is opened, the filled frame I, with the dry linen, is taken out, and in place thereof another frame already filled in the manner above described is put in place, and the operation repeated.

What I claim is- In a machine for rapidly drying clothes, the combination of the furnace D, the double recurved exit-pipe E, the outer chimney E', the lower casing A, the upper casing B, the hinged lid C, the Ventilating-tubes b, the dampers c, the horizontal shaft o, the drum H, the detachable frames I, the sand-layer plate F, the baffle-plate Gr and the handle K,

In Witness whereof I have hereunto set my hand in presence of two witnesses.

PAUL SIEFELDT.

Vitnesses:

TRAAK FUcH, THos. E. HERNAN. 

